What was found
PDX - LEFT WING PANEL 522AT COUNTER SINKS HAVE FRETTING FROM SCREWS AT INBOARD AND OUTBOARD ENDS. REPAIRED IAW DHC-8-200 SRM 51-20-16.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - LEFT WING PANEL 522AT COUNTER SINKS HAVE FRETTING FROM SCREWS AT INBOARD AND OUTBOARD ENDS. REPAIRED IAW DHC-8-200 SRM 51-20-16.